You performed the following tests to identify your unknown bacterial species, an

Question

You performed the following tests to identify your unknown bacterial species, and obtained these results. Unfortunately, one of your culture tubes was contaminated during inoculation, which resulted in an INCORRECT result. Use the ID matrix provided to determine which of the test results listed is most likely due to this contamination, and therefore INCORRECT. Results table Test Observation Interpretation Growth on TSA White, moist, glistening Reaction Red Gram stain Morphology Rod Bacilli Yellow with a bubble Glucose A/G FermentaionLactose Yellow with a A/G bubble Red Yellow Yellow Yellow Yellow Sucrose Indole Methyl Red Voges-Proskauer Urease

Explanation / Answer

The result data is almost similiar to the ID matrix of enterobacter aerogenes ,exception being the Voges -Proskauer which was supposed to be positive in our test result but because of contamination, we get a wrong negetive result. Therefore Voges-Proskauer test result is incorrect.

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